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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   https://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.bcel.classfile;
20  
21  import java.io.DataOutputStream;
22  import java.io.IOException;
23  
24  /**
25   * An annotation's element value pair.
26   *
27   * @since 6.0
28   */
29  public class ElementValuePair {
30  
31      static final ElementValuePair[] EMPTY_ARRAY = {};
32  
33      private final ElementValue elementValue;
34  
35      private final ConstantPool constantPool;
36  
37      private final int elementNameIndex;
38  
39      public ElementValuePair(final int elementNameIndex, final ElementValue elementValue, final ConstantPool constantPool) {
40          this.elementValue = elementValue;
41          this.elementNameIndex = elementNameIndex;
42          this.constantPool = constantPool;
43      }
44  
45      protected void dump(final DataOutputStream dos) throws IOException {
46          dos.writeShort(elementNameIndex); // u2 name of the element
47          elementValue.dump(dos);
48      }
49  
50      public int getNameIndex() {
51          return elementNameIndex;
52      }
53  
54      public String getNameString() {
55          return constantPool.getConstantUtf8(elementNameIndex).getBytes();
56      }
57  
58      public final ElementValue getValue() {
59          return elementValue;
60      }
61  
62      public String toShortString() {
63          final StringBuilder result = new StringBuilder();
64          result.append(getNameString()).append("=").append(getValue().toShortString());
65          return result.toString();
66      }
67  }